Pneumatic seat.



Patented m. 17,1918.

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Patented Doc. 17; 1918.

2 SHEETS-SHhET 2 I with the portion (3 of the casing extending so .s:arwhno l in.

HENRY SEILEEL, 015 LOS ANGELES! CALIFORNEA, ASSIGNUR T0 UNITED AIRSPRING- CGMPANY 91* ARIZONA, 0F EH01] IX, ARIEQNA, A. COEPQEEtTEOld-OFARlZOB-il.

1 2 EUMATIC SEAT.

Application. filed December i, 1e17,

To all whom it may concern:

Be it knownthat I, HENRY SEEBEL, e c te zen of the United States,residing at Angeles, in the county of Los Angeies, and State ofCalifornia, have invented new and useful Improvements in PneumaticSeats, of which the following is a specification. I

-My present invention is a modification or" the invention shown,described and claimed in my companion application. May 7th, 1917, forpneumatic sects, Ser al No. 167,026; the object of my present inventionbeing to simplify and improve the details of construction of thesupporting casing and make the parts quickly detachable for inserting orremoving the 1nner pneumatic tube, and my invention consists in thenovel features herein shown, described and claimed.

Figure 1 is a side elevation show ng the pneumatic seat embodying theprinciples of my invention and applied to a motorcycle frame.

Fig. 2 is an enlarged fragmentary view on a planeparullel with Fig. lpartly in elem-- tion and partly in section. l

Fig. 3 is a plan of the attaching r ng to which the pneumatic supportingcasing is vulcanized. I

Fig. is a perspective of the metallic parts by which the supporting;casing is connected to the seat frame.

Fig. 5 is a View analogous to showing :1 modified construction.

Fig. (3 is a fragmentary perspective ofthe metallic parts by which thesupporting cesing is connected to the seat frame in Fig.

The-casing binding ring 1 is circular upon its periphery 2 and has aconcentric opening 3 and tapped bolt holes l. The inner edge of the ringis rounded and the outer edge of the ring is tapered and slightly curveddownwardly in cross-section. The support-- ing casing 5 is normallyspherical end has an opening corresponding; to the opening 3 in thering 1. The ring 1 is placed in position through the opening 3, theportion of the material extending outwardly over the ring, one theportion 8 extending outwardly beyond the ring and vulcanized to the bodyof the casing. After the casing has been thus Patented Dec. 1?, Eerie23o. W335,

prepared, openings 9 are formed through the portion 6 to register withthe bolt holes 4, Which-are here shown us four in number,

but any number may be used, as desired.

The fitting 10 comprises the central tu'-.

bular portion 11; the passage through the portion 11 being the samesize. as the passage through the portion 6 of the casing; a sup portingbase 12 extending outwardly from the lower end of the tubular portion lland adapted to press upon the portion 7 of the c: sing in opposition tothe ring 1, the casing gun rd 13 extending outwardly and upwardly fromthe base portion 12, and the attaching flange 1% extending outwardlyfrom the up per end of the tubular portion 11.

The attaching plate "15 may be circular in plan for one supportingcasing or it may be of any desired form Where a plurality of casings areto be used. The attachingplate 15 has a central opening 15 the same sizeas the passage through the portion 6 of the ens ing and the tubularportion 11, and the flange is: fits the lower side of the plate aroundsaid opening. Bolts 17 are inserted downwardly through the plate 15 andthrough. the flange M te hold the fitting 10 rigid with the attachingplate 15, and bolts 18 are inserted downwardly through the attachingplate 15 and through the flange Ll, through the base through the portionY of tl'ie'cesing, and are screw-seated in the bolt holes A in the king1, care being taken that when the bolts 18 are screwed down tight thepoints of the bolts will not extend through the ring 1.

The attaching plute 15 is secured to the main seat frame 19 by bolts 20.The piain seat frame 19 has a chamber 21 communicating through thethroat, formed by the opening it), the tubular portion 11 of the fitting10 and the opening through the portion 3 of the casing, with the chamber22 in the supporting casing 5. A pneumatic inner tube is mounted in thechamber 21 and has an extension 2% extending through the throat into thesupporting casing 53.

The parts are niudenjies described tothe bolts 20, the inner tube isplaced inthe chamber 21, then. the extension 24 is inserted throughthethrost into the casing 5, the atteching plate brought into positionagainst comes or the greater the load, the more the guard will beengaged by the casing.-

l/Vhen it is desired to remove the inner.

tube, the nuts are unscrewed fromthe stud bolts and the attaching plate15 pulled away from the seat frame, the inner tube having been deflated,and the extensioh 2 lpulled outof the casing 5.

Referring to the'modification shown in Figs. 5 and 6, the seat frame 26is similar in construction to the seat frame 19, and

the attaching plate 27 and the parts 28, 29. 30 and 31 are similar tothe parts 15, 11, 12, 13 and. 14: in Fig. 2. Bolts 32 connect the flange31 to the attaching plate 27 and b0lts33- are inserted downwardlythrough the attaching plate 27 through the flange 31 and screw-seated inthe supporting base'29.

The metallic binding ring 34: has an upwardly sloping rounded inner face35 and a downwardly sloping rounded outer face 36. This metallic ring isplaced inside of the casing 37 around the opening 38 in op:

position to the attaching base 29, and the 1 parts are vulcanized tosecure the ring 34 against the inner face of the casing and theattaching base 29 against the outer face of the casing in opposition toeach other. -tProjections 14 extending upwardly from the ring 8% pressthe material of the casing 37 into recesses 45 as in the attaching base29, so as to produce rough and uneven suracesfor the vulcanized rubberto unite with and stick to and to assist in gripping the casing andholding it from pulling out from between the two metallic parts.

In building and assembling the parts, the

ring 3 1, the casing 37, and the attaching base 29 are first vulcanizedtogether. then" the bolts 32 are inserted to secure the attaching plate27 to the flange 31, the bolts 38 are inserted to still further securethe parts together, then the inner tube 39 is placed in the chamber 40in the seat frame 26 and the extension 41 of the inner tube is inserteddownwardly through the tube 28 into the casing 37, then the nuts 42 areapplied to the stud bolts 43.

The seat frame 19 or 26 constitutes a frame having a chamber with anopening at one side, and the casing 5 or 37 constitutes a cover for theopening, said cover forming an extension of the chamber in the frame andsaid cover being larger than the opening.

While the casing is situated to-priinarily receive the shock and sustainthe load. the chamber in the frame constitutes a reservoir masses and anadditional cushion and prevents a perceptible increaseof the airpressure in the casing; V

The guards 13 and 30 serve to protect the inner tube 'from gettingsqueezed and to hold'the casing in place when the inner tube is more orless deflated.

The 'conical deformer 15 is mounted upon the base 46 in verticalalinement with the opening 17 through the neck and tends to turn thecasing inside out under a heavy load or when deflated. The action of thedeformer serves to keep the fabric under tension instead of compressingor wrinkling the contacting portion as on a flat surface.

elastic action is desirable, such as in supporting engines, supportingvehicle bodies, in aeroplane work, mattresses, shock absorbers, and thelike. 1

Various changes may be made in the details of construction withoutdeparting from the spirit of my invention as set up in the followingclaims.

I claim:

1. In a pneumatic seat, a ring having tapped bolt holes, and a sphericalcasing having an opening smaller than the'opening through the ring andhaving material extending through the opening of the ring over the ringand vulcanized to its body.

2. In a pneumatic seat, a metal ring hav ing tapped bolt holes, a casingvulcanized to the ring, a fitting/having a tubular portion matching theopening from the casing through the ring, a supporting base inopposition to the/ring, and a flange extending from the upper end of thetubular portion, an attaching plate fitting against the flange, andbolts inserted downwardly through the attaching plate, through theflange, through the base and through the material of the easing into.the tapped bolt holes of the ring.

3.1 1 a pneumatic seat, a metal ring having tapped bolt holes, a casingvulcanized to the ring, a fitting having a tubular portion matching theopening from the casing throu h the ring, a supporting base inopposition to the ring, and a flange extendingv from the upper end ofthe tubular portion, an attaching plate fitting against the flange,bolts inserted downwardly through the attaching plate, through theflange, through the base and through the material of the cusaaee holesof the ring,

ing into the tapped bolt upwardly and through the tubular portion ofthe-fitting and having" tapped bolt holes, and bolts insorted downwardlythrough the attaching plate into the ring.

5. In a pneumatic seat, an attaching plate having a central opening,'afitting having a tubular openinn matching the central opening in theplate and having a flange extendingiroin its upper end, a pneumaticcasing having a ring embedded around an pening matching the tubularopening in the fitting and bolts inserted through the attaching plateand through the flange to hold the fitting rigidly in place relative tothe attaching plate.

6. In a pneumatic seat, an attaching plate having a central opening, afitting having a tubular opening matching the central opening in theplate and having a flange extending from its upper end, a pneumaticcasing having a ring embedded around an; opening matching the tubularopening in the fitting, bolts inserted through the attaching plate andthrough the flange to hold the litting rigidly in place relative to theattach- ,eie

ing plate, and bolts inserted downwardly through the attaching platethrough the flange and into the ring.

7. in a pneumatic support, a spherical pneumatic casing having anopening, a binding ring inside of the casing around the opening, and anattaching base against the casing around the opening and in oppositionto the binding ring; "the base, casing an binding ring being vulcanizedtogether,

8. In a pneumatic support, a pneumatic casing having an opening, abinding ring inside of the casing around the opening, projections uponthe binding ring against the casing, and an attaching, basetagainst theoutside of the casing in opposition to the binding riner and havingrecesses in opposition to the projections; the binding ring, casinsz andbase being vulcanized together.

9. In a pneumatic support, a metallic frame having a chamber and anopening leading to the chamber, means throat leading from the chamber,an attaching base extending outwardly from the outer end of the neck, aspherical pneumatic casing fitting against the attaching base and havingan openingcommunicating with the throat, and a binding ring inside ofthe casing around the opening; the binding ring, casing and attachingbase being vulcanized together.

In testimony whereof I have signed my name to this specification.

' v HFNRY SEIBEL.

forming a neck having a

